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From: Sylvester on 7 Feb 2005 08:48 Hello, I'm running a mfc dialog based application on a pocket pc. During mainDlg::OnInitDialog I'm loading a menu which depends on a menu resource. I'm trying to change the state of a menu item to either checked or unchecked but a call to GetSubMenu fails, so I'cant change the state. Is it possible to change the state or is it a constraint to Document/view architecture based applications? please help thanks in advance
From: r_z_aret on 7 Feb 2005 15:41
I don't use MFC, but I'll try anyway. More below. On Mon, 7 Feb 2005 14:48:51 +0100, "Sylvester" <lists_sebastian(a)yahoo.de> wrote: >Hello, > >I'm running a mfc dialog based application on a pocket pc. During >mainDlg::OnInitDialog I'm loading a menu which depends on a menu resource. > >I'm trying to change the state of a menu item to either checked or unchecked >but a call to GetSubMenu fails, so I'cant change the state. Without knowing more about how you call GetSubMenu, I can't tell why it fails. The following is a slightly edited copy of the function I use. I let the caller pass a negative argument to specify the top-level menu. It's part of a class, and m_hMenu is a member variable. HMENU GetSubMenu ( int nPosMenu, // (In) Position in menu of desired submenu ) const { HMENU hMenu = nPosMenu < 0 ? m_hMenu : ::GetSubMenu( m_hMenu, nPosMenu ); return hMenu; } > >Is it possible to change the state or is it a constraint to Document/view >architecture based applications? I write only dialog-based applications, but doubt such a constraint might exist. But the following comment from my code seems relevant: // Effects of CheckOrUncheckItem are visible only if the function is called in // response to a WM_INITMENU or WM_INITMENUPOPUP message > >please help thanks in advance > ----------------------------------------- To reply to me, remove the underscores (_) from my email address (and please indicate which newsgroup and message). Robert E. Zaret, eMVP PenFact, Inc. 500 Harrison Ave., Suite 3R Boston, MA 02118 www.penfact.com |